Questions tagged [functional-programming]
Use this tag for programs where "functional" style is important - likely making use of function composition and without side-effects. NOT simply because your code contains functions!
1,002 questions
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C# railway oriented programming with async support
In my application there are many business workflows. Most of them are quite simple and can be put in one function. A few of them however are very complex and have many business validations, require ...
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2
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Base16/32/64 implementation for C++ ranges
Introduction
The following code is an implementation of, in ambition, RFC 4648 compliant Base16, Base32 and Base64 conversions as range adaptors and constrained algorithms in C++23. It can be used at ...
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std::ranges compile time (and run time) RFC 4648 compliant Base16 conversions in C++23 (improved 2)
This increment
This obsoletes a former version, after taking a great review into account:
The encoding now preserves sized_range and ...
- 791
2
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1
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Compile time (and run time) RFC 4648 compliant Base16 conversions as range adaptors in C++23 (improved) [duplicate]
Edit: obsoleted by an improved version.
Edit: now updated with unit tests that show that this implementation also works for non-forward ranges, i.e. string streams, files streams, on-the-fly encoding/...
- 791
3
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2
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Compile time (and run time) RFC 4648 compliant Base16 conversions as range adaptors in C++23
This obsoletes a former version and is obsoleted by an improved version.
The following code is an implementation of, in ambition, RFC 4648 compliant Base16 conversions as range adaptors in C++23. It ...
- 791
4
votes
1
answer
210
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Hexadecimal conversions as range adaptors in C++23 that work at compile time (and run time) [duplicate]
This is obsoleted by a significantly better version.
The following code is an implementation of hexadecimal conversions as range adaptors in C++23. It can be used at compile time, but should of course ...
- 791
5
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3
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HackerRank, Haskell simple "compression" algorithm
The question asked is very straight-forward and is simple enough to solve. What I am looking for is that hopefully I can get some understanding for using the constructs and built-ins of the Haskell ...
- 780
4
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6
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422
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Search values by priority in a Stream
I have a simple list of results, and I need to return only one value depending on content, for example:
...
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3
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1
answer
399
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Event sourcing javascript implementation
An event source built around an observer design pattern implementation…
...
user284150
1
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1
answer
70
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Buffered source of HTMLElement(s)
Temporary storing the element(s) returned by document.querySelector and document.querySelectorAll methods could improve ...
user284064
8
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1
answer
113
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Haskell 2-player TicTacToe terminal game
I want to get better at functional programming so I started with this simple 2-player TicTacToe game. Next I want to add a simple min-max algorithm to make it a 1-player game, but before that I'd like ...
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8
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3
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fmap for containers in c++
I implemented a simple fmap for containers. However containers don't have a unified function to add elements. So I wrote different concepts for different containers. Is there a better way to implement ...
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3
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1
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101
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In Java, replace for loop with condition with lambdas [closed]
I want to replace a for loop with a break/return condition inside with a lambda.
I think I have a good replacement, but I want ...
1
vote
1
answer
84
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Sprinkler effect
Developed around visibility CSS property and HTMLElement#offsetHeight and ...
user283117
4
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3
answers
223
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Get the contents of a table cell for all selected rows
I have a table of user info. When you click the button, I want to get the email address from each selected row, output into a comma-separated string.
I got it to work with the following code, but I'm ...
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